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Year of first isolation: | 
1981 |  
| Formula: | C27H42O5 |  
| Molecular weight: | 446 |  
| Occurence in plants:  |  
Laurencia pinnata [Rhodomelaceae] »   ![Wikipedia: Laurencia pinnata [Rhodomelaceae]](/images/wikipedia.png)  
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| Occurence in animals:  |  
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| Canonical SMILES | CC(C)CCC(C(C)(C1CCC2C1(CCC3C2=CC(=O)C4=CC(C(CC34C)O)O)C)O)O |  Isomeric SMILES [ PubChem: search | XML ] [ ChemSpider: search ] | C1[C@]2(C(=C[C@@H]([C@H]1O)O)C(=O)C=C1[C@@H]2CC[C@]2(C1CC[C@@H]2[C@@]([C@@H](CCC(C)C)O)(C)O)C)C  »   C1[C@]2(C(=C[C@@H]([C@H]1O)O)C(=O)C=C1[C@@H]2CC[C@]2([C@H]1CC[C@@H]2[C@@]([C@@H](CCC(C)C)O)(C)O)C)C  »   C1[C@]2(C(=C[C@@H]([C@H]1O)O)C(=O)C=C1[C@@H]2CC[C@]2([C@@H]1CC[C@@H]2[C@@]([C@@H](CCC(C)C)O)(C)O)C)C »  
  |  | IUPAC Name | (2S,3S,10R,13S,17S)-17-[(2R,3S)-2,3-dihydroxy-6-methylheptan-2-yl]-2,3-dihydroxy-10,13-dimethyl-1,2,3,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-6-one |  | CAS-RN |    |  | PubChem CID | 52931315  |  InChiKey [ ChemIDPlus: search ] | NBEQHHTVOOYUFN-ORTBPADBSA-N |  | InChI | InChI=1S/C27H42O5/c1-15(2)6-9-24(31)27(5,32)23-8-7-17-16-12-20(28)19-13-21(29)22(30)14-26(19,4)18(16)10-11-25(17,23)3/h12-13,15,17-18,21-24,29-32H,6-11,14H2,1-5H3/t17?,18?,21-,22-,23-,24-,25-,26+,27+/m0/s1 |  
  
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| CI-MS (NH3) m/z |   |  | EI-MS m/z (relative intensity %) | 446 [M]+ |  | HR-MS |   |  
  
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| C5D5N |  | 01 |   |  | 02 |   |  | 03 |   |  | 04 |   |  | 05 |   |  | 06 |   |  | 07 |   |  | 08 |   |  | 09 |   |  | 10 |   |  | 11 |   |  | 12 |   |  | 13 |   |  | 14 |   |  | 15 |   |  | 16 |   |  | 17 |   |  | 18 |   |  | 19 |   |  | 20 |   |  | 21 |   |  | 22 |   |  | 23 |   |  | 24 |   |  | 25 |   |  | 26 |   |  | 27 |   |  | 28 |   |  | 29 |   |  
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| CD3OD |  | 01-Ha |   |  | 01-He |   |  | 02-Ha |   |  | 03-He |   |  | 04-Ha |   |  | 04-He |   |  | 05-H |   |  | 07-H |   |  | 11-Ha |   |  | 11-He |   |  | 12-Ha |   |  | 12-He |   |  | 14-H |   |  | 15-Ha |   |  | 15-Hb |   |  | 16-Ha |   |  | 16-Hb |   |  | 17-H |   |  | 18-Me |   |  | 19-Me |   |  | 20-H |   |  | 21-Me |   |  | 22-H |   |  | 23-Ha |   |  | 23-Hb |   |  | 24-Ha |   |  | 24-Hb |   |  | 25-H |   |  | 26-Me |   |  | 27-Me |   |  
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| M.P. | 198-201°C |  | [α]D20 | + 37° (c ; MeOH) |  | IR (KBr) ν max (cm-1) |   |  | UV (EtOH) λ max (log ε) |   |  
  
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| HPTLC |   |  | TLC | NP-TLC on silica gel Rf 0.56 (CHCl3-EtOH, 80:20); RP-TLC on paraffin-coated silica gel Rf 0.10 (MeOH-H2O, 50:50); RP-TLC on C18-bonded silica gel Rf 0.10 (MeOH-H2O, 65:35) |  | GLC |   |  | HPLC |   |  
  
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Permanent link to this datasheet: PINNASTEROL
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